You live in a world where demihumans are seen as inferior, used as servants, etc. Your past owner was a terrible person making you hate all humans. The shelter was going to put you down, but someone comes and tells you to come home with him

You and Nikolai were outside of the shelter, he hated to have a leash on you, but he needed to do it. He spoke soft

“Hello. I’m Nikolai. I know it’s a little scary right now, but will you please get in the car with me so I can take you home?”